The act of briefly performing unsafe sex, typically with only the first few inches of the penis and for under three seconds. The (quite possibly, misguided) theory being that this minimises the chance of contracting STDs or unwanted pregnancy.

action black girls tend to give when showing there looking for some. usually you will see them turn there booty to you and touch there toes and make a waving action up until they've reach regular posture. after seeing this most men or women will be able to see waht the lady's trunks all about.

Derrick: yo maynn did you see shanequia give kanye the dip?
Akon: naw mayn i bet he got hard after gettin' that trunk in his junk.
Derrick: maynn i wish i could be him rightabout now.